Service Manual
Page 5
...(CN852) 24 Holder 25 Screw 26 Light Pipe Unit Part No. Description GM-X552/X1R/UC GM-X552/X1R/EW GM-X552/X1R/ES 9 Panel HNB0124 HNB0141 HNB0124 11 Panel HNB0137 HNB0145 HNB0137 13 Heat Sink HNR0180 HNR0188 HNR0180 16 Amp Unit HWH0142 HWH0141 HWH0143 5 GM-X552 (1) EXTERIOR SECTION PARTS LIST Mark No. Description 1 Screw 2 Screw 3 Screw 4 Screw 5 Screw...
...(CN852) 24 Holder 25 Screw 26 Light Pipe Unit Part No. Description GM-X552/X1R/UC GM-X552/X1R/EW GM-X552/X1R/ES 9 Panel HNB0124 HNB0141 HNB0124 11 Panel HNB0137 HNB0145 HNB0137 13 Heat Sink HNR0180 HNR0188 HNR0180 16 Amp Unit HWH0142 HWH0141 HWH0143 5 GM-X552 (1) EXTERIOR SECTION PARTS LIST Mark No. Description 1 Screw 2 Screw 3 Screw 4 Screw 5 Screw...
Service Manual
Page 6
SCHEMATIC DIAGRAM 3.1 OVERALL CONNECTION DIAGRAM(GUIDE PAGE) Note: When ordering service parts, be sure to refer to "EXPLODED VIEWS AND PARTS LIST" or "ELECTRICAL PARTS LIST". A A-a SPEAKER INPUT L+ R+ L- R- A AMP UNIT Large size A-a A-b SCH diagram A-a A-b Guide page A-a A-b Detailed page ISOLATOR GAIN = 1 LPF SELECT LP FILTER 80Hz - 12dB/OCT B C DC/DC CONVERTER REGULATOR D A 6 1 2 3 BFC (EW,ES mo 4 1 2 3 4 GM-X552 3.
SCHEMATIC DIAGRAM 3.1 OVERALL CONNECTION DIAGRAM(GUIDE PAGE) Note: When ordering service parts, be sure to refer to "EXPLODED VIEWS AND PARTS LIST" or "ELECTRICAL PARTS LIST". A A-a SPEAKER INPUT L+ R+ L- R- A AMP UNIT Large size A-a A-b SCH diagram A-a A-b Guide page A-a A-b Detailed page ISOLATOR GAIN = 1 LPF SELECT LP FILTER 80Hz - 12dB/OCT B C DC/DC CONVERTER REGULATOR D A 6 1 2 3 BFC (EW,ES mo 4 1 2 3 4 GM-X552 3.
Service Manual
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4 3 2 1 8 A-a D L+ R+ L- SPEAKER INPUT ISOLATOR GAIN = 1 A AMP UNIT LPF SELECT LP FILTER 80Hz - 12dB/OCT C B A A-a A-b 1 2 3 GM-X552 4 3 2 1 R-
4 3 2 1 8 A-a D L+ R+ L- SPEAKER INPUT ISOLATOR GAIN = 1 A AMP UNIT LPF SELECT LP FILTER 80Hz - 12dB/OCT C B A A-a A-b 1 2 3 GM-X552 4 3 2 1 R-
Service Manual
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For further information for several destination. INPUT LR C GAIN LPF D A 12 1 2 3 4 PCB CONNECTION DIAGRAM 4.1 AMP UNIT NOTE FOR PCB DIAGRAMS A 1. The parts mounted on this PCB include all necessary parts for respective destinations, be sure to check with the schematic diagram. 2. Viewpoint of PCB diagrams A AMP UNIT Connector Capacitor SIDE A P.C.Board Chip Part B SIDE B SPEAKER R+ RINPUT L+ L- 1 2 3 4 GM-X552 4.
For further information for several destination. INPUT LR C GAIN LPF D A 12 1 2 3 4 PCB CONNECTION DIAGRAM 4.1 AMP UNIT NOTE FOR PCB DIAGRAMS A 1. The parts mounted on this PCB include all necessary parts for respective destinations, be sure to check with the schematic diagram. 2. Viewpoint of PCB diagrams A AMP UNIT Connector Capacitor SIDE A P.C.Board Chip Part B SIDE B SPEAKER R+ RINPUT L+ L- 1 2 3 4 GM-X552 4.
Service Manual
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.../__S___J Chip Capacitor (except for CQS.....) CKS....., CCS....., CSZS..... =====Circuit Symbol and No.===Part Name Part No A Unit Number : HWH0142(GM-X552/X1R/UC) : HWH0141(GM-X552/X1R/EW) : HWH0143(GM-X552/X1R/ES) Unit Name : Amp Unit MISCELLANEOUS IC 101 IC IC 651 IC IC 851 IC IC 852 IC IC 901 IC NJM4558L PA2027A NJM2068D.../4PU511J RD1/4PU511J RD1/4PU333J RD1/4PU333J RD1/4PU681J RD1/4PU681J RD1/4PU223J RD1/4PU223J RD1/4PU101J The part numbers shown below indicate chip components. GM-X552 5.
.../__S___J Chip Capacitor (except for CQS.....) CKS....., CCS....., CSZS..... =====Circuit Symbol and No.===Part Name Part No A Unit Number : HWH0142(GM-X552/X1R/UC) : HWH0141(GM-X552/X1R/EW) : HWH0143(GM-X552/X1R/ES) Unit Name : Amp Unit MISCELLANEOUS IC 101 IC IC 651 IC IC 851 IC IC 852 IC IC 901 IC NJM4558L PA2027A NJM2068D.../4PU511J RD1/4PU511J RD1/4PU333J RD1/4PU333J RD1/4PU681J RD1/4PU681J RD1/4PU223J RD1/4PU223J RD1/4PU101J The part numbers shown below indicate chip components. GM-X552 5.
Service Manual
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Remove the three screws and then remove the Case. Remove the twelve screws and then remove the Amp Unit. Remove the six screws and then remove the Panel. - Remove the screw. GM-X552 Case Panel Fig.1 Amp Unit Fig.2 19 Removing the Case and the Panel (Fig.1) Remove the four screws. Remove the two screws. GENERAL INFORMATION 7.1 DISASSEMBLY - Removing the Amp Unit (Fig.2) Remove the fourteen screws. 7.
Remove the three screws and then remove the Case. Remove the twelve screws and then remove the Amp Unit. Remove the six screws and then remove the Panel. - Remove the screw. GM-X552 Case Panel Fig.1 Amp Unit Fig.2 19 Removing the Case and the Panel (Fig.1) Remove the four screws. Remove the two screws. GENERAL INFORMATION 7.1 DISASSEMBLY - Removing the Amp Unit (Fig.2) Remove the fourteen screws. 7.